Slideway construction.



J. B. SINDERSON; SLIDEWAY CONSTRUCTION.

APPLICATION FILED SEE-1H9. 1913 1,128,274. Patented Feb.9, 1915.

UNITED STATES PATENT orrron JOHN B. SINDERSON, O'F ROCKFORD, ILLINOIS,ASSIGNOR TO THE INGERSOL'L MILLING MACHINE COMPANY, OF ROCKFORD,ILLINOIS, A CORPORATION OF ILLINOIS.

' sLrnEwAY cons'rnuo'rron. v

Specification of Letters Patent.

Application filed September 9,1913. se iama'masea r To all whom it may)concern Be it known that I, JOHN B. SINDERSON, a citizen of the UnitedStates, residing at Rockford, in the county of Winnebagoand the State ofIllinois, have invented certain new and useful Improvements in SlidewayConstruction, of which the following is a specification.

This invention relates to the mounting of movable carriages or tablesupon slideways.

such as are used variously in machine construction. f

In machine construction slideways are generally formed integral with abase or bed member,-have parallel bearing edges which are eitherstraight or beveled, and mounted movable longitudinally upon theslideways is a carriage or work holding table which is held thereupon bygibs. In slideways where the parallel or beveled edges are closetogether the portion intermediate said edges will commonly be formedsolid, that is, the bed member will extend at substantially the heightof said edges, from one edge tothe other. In this construction one ormore adjustable gibs are used. to take up wear between the carriage andslideways or to lock the two together. In this simple form of carriageand slideways the side gibs answer their 7 purpose efliciently. But incases where slideways-are used where their parallel edges are spacedapart to any extent, the metal between them is cut away for structuralpurposes, or where each slideway is carried spaced apart upon individualle members, then the application 7 of side gi s to the outer edges ofthe slideways will exert a strain upon the slideways tending to forcethem together which results in their bearing faces being thrown out oftrue and thereby resulting in defective and inefficient bearing of themovable carriage upon the slideways.

It is the object of my invention to overcome this defective bearingfeature and for the purpose I utilizein combination with an adjustableside gib, two longitudinally tapered 'bs located intermediate the lnnersides 0 said parallel edge members and the outer sides of a portion ofthe carriage disposed between said edge members, these two be beingadjustable to take up wear an thus form a rigid carriage mountingadapted to resist lateral strains to the slideways.

Inythe accompanying drawings: Figure 1 v is a plan view of a tablemounted slidable upon a bed member, a portion thereof being broken awayto show a' tapered gib. Fig.

vious that this form of carriage mounting.

may be put to use in variousmachine construction.

A bedmember 3 is mounted slidable vertically upon the frame member 4:and carries horizontally two parallel beveled edge slideways havingstraight surfaces 5 and beveled surfaces 6, the slideways being spacedapart raised from the bed member 3 and having lnner vertical edges 7tapered longitudinally. Mounted slidable upon said slideways is thetable 8, said table having a depending beveled edge 9'engaging thebeveled edge 6, and is held upon the slideway by the side beveled gib 10which is held in position and is adjustable to take up wear by the bolts11. The table has a ledge portion 12 depending intermediate the slide-Ways, the ledge having parallel vertical faces 13. Longitudinallytapered gibs 14 are disposed between faces 7 and 13 and are each formedwith an offset head 15 throu h which'bolts 16 extend, these bolts beinhe (1 fixed in the ends of the slideways an have nuts thereon adjacenteach side of the heads 15. ,c

It will be seen that by tightening up bolts .11 the gib 10 takes up anywear between the out of a true working contact with the table.

By means of the dependin ledge portion of the table and the bevele gibs,these gibs may be adjusted to take up all wear at the sides of saidledge and to maintain rigid bearing faces for the table, such as willgive a very substantial support to the table and will obviate lateralstrains tending to impinge the bearing faces thereof.

I claim as my invention:

1. The combination of two slidewaysspaced apart having longitudinalparallel and tapered faces, a member mounted slidablc upon theslideways, and longitudinally Patented eb. 9, 1915;

ways upon which a member is adapted to slide and the inner edges formingadjustment faces with which longitudinally tapered gibs are adapted tocontact to take up wear between the slideways and slidable member.

3. A slideway construction comprising two slideways spaced apart withtheir outer edges parallel and beveled and their inner edgeslongitudinally tapered, the outer edges forming ways upon which a memberis adapted to slide and to be held from transverse displacement, and theinner edges forming adjustment faces with which longitudinally taperedgibs are adapted to contact to take up wear between the slideways andslidable member.

4. The combination of two slideways spaced apart having parallel outeredges and longitudinally tapered inner edges, a member mounted slidableupon the slide ways and having a parallel edged portion disposed betweensaid spaced slideways, and two longitudinally tapered gibs disposedintermediate the inner sides of the slideways and the edges of saidparallel edged portion, the gibs adapted to be adjusted longitudinallyto take up wear between the slideways and slidable member.

5. The combination of two slideways spaced apart having parallel outeredges and one of their inner edges being tapered longitudinally, amember slidable upon the slideways and having a portion disposed between said spaced slideways, a gib located between one of said parallelouter edges and the slideway member, and a longitudinally tapered giblocated between said tapered edge of a slideway and an edge of saidportion disposed between the slideways.

6. The combination of two slideways spaced apart, a member mountedslidable upon the slideways, an adjustable gib disposed between an outeredge of a slideway and said member to take up wear between said slidewayand member, and means disposed intermediate' said spaced slideways andcooperating with the slidable member for maintaining said slideways in afixed relation relatively to adjustments of said ib. g 7. Thecombination of two slideways spaced apart, a member mounted slidableupon the slideways, an adjustable gib disposed between an outer edge ofa slideway and said member to take up wear between said slideway andmember, and means including a beveled gib disposed intermediate saidspaced slideways, cooperating with the slidable member and adapted tomaintain said slideways in a fixed relation relatively to adjustments ofsaid gib.

8. In a slideway construction, the combination of a bed member having aslideway formed with longitudinal faces one of which is pen-parallelwith the slideway, a table member slidably mounted 'upon the slidewayand having parallel bearing faces, and a member having two non-parallelfaces and mounted intermediate said non-parallel slideway face and atable member bearing face, forming bearing for the latter.

9. In a slideway construction, the combination of a bed member having aslideway, a table member slidably mounted thereon, and a member includedin the bearing of said members, being tapered longitudinally laterallyof the slideway and movable longitudinally to take up lateral playbetween said members.

10. In a slideway construction, the combination of a slideway, a tablemember slidably mounted thereon, and a member included in the slidewaybearing and being tapered longitudinally laterally thereof and movablelongitudinally to take up lateral play between the members, and meansfor maintaining said tapered member in a set position and for adjustingthe same longitudinally to different set positions.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOHN B. SINDERSON.

